Production Of Non-Woven Materials From Polyhydroxyalkanoate
OwnerYelena Kann, Robert S. Whitehouseinventors
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Abstract
Methods and compositions for making non-woven materials from polyhydroxyalkanoate polymers are provided. In certain aspects, the invention pertains to an extruded fiber comprising a polyhydroxyalkanoate polymer, a wet milled nucleating agent and a plasticizer, wherein the average particle size of the wet-milled nucleating agent is about 20 microns and is dispersed in the polymer.
Claims28
An extruded and melt-blown fiber, comprising a polyhydroxyalkanoate polymer, a wet milled nucleating agent and a plasticizer, wherein the average particle size of the wet-milled nucleating agent is below about 20 microns and is dispersed in the polymer.
An extruded melt-blown fiber comprising between about 85% and about 95% by weight biologically-produced polyhydroxybutyrate, between about 5% and about 15% acetyl tri-n-butyl citrate, wherein the fiber has a weight-average molecular weight of at least about 200 kg/mol.
An extruded fiber comprising a biologically-produced polyhydroxyalkanoate a plasticizer, and a wet milled nucleating agent wherein the fiber has a weight-average molecular weight of at least about 150 kg/mol.
A fiber comprising a polymer, a plasticizer and a nucleating agent, wherein the nucleating agent is dispersed in the polymer and wherein at least 5% of the cumulative solid volume of the nucleating agent exists as particles with a particle size of 5 microns or less.
Dependencies are inferred from the claim text.